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Step‐Heating Technique for Thermal Diffusivity Measurements of Large‐Grained Heterogeneous Materials
Author(s) -
Bittle R. R.,
Taylor R. E.
Publication year - 1984
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1984.tb19739.x
Subject(s) - thermal diffusivity , laser flash analysis , materials science , thermal , flash (photography) , laser , composite material , brick , thermal conductivity , mineralogy , optics , thermodynamics , geology , physics
The laser‐flash technique for thermal diffusivity determinations was modified to handle thicker samples (up to 1.3 cm). The modification consisted of substituting an ir source for the laser and using step heating. Thus measurements can be made on representative samples of large‐grained heterogeneous materials. Experimental measurements were made on a carbon magnesite brick, and the concept was verified using finite‐element models.